Bench vise for saw filers



April 18, 1950 H. c. HANCOCK 2,504,410

BENCH VISE FOR SAW FILERS Filed Oct. 7, 1947 2 Sheets-Sheet 1 m Henry 0. Hancock Ap 1956 H. c. HANCOCK 2,504,410

BENCH VISE FOR SAW FILERS Filed Oct. 17, 1947 2 Sheets-Sheet 2 Inventor Henry 0. Hancock WWW Em Patented Apr. 18, 1950 UNITED STATS BENCH VISE FOR SAW FILERS Henry 0. Hancock, San Antonio, Tex. Application October 17, 1947, Serial No. 780,406

1 Claim. 1

My invention relates to improvements in bench vises for holding saws for filing, the primary object in view being to provide a simply constructed, strong, light weight vise adapted for easy, quick attachment to a work bench to hold hand saw blades rigidly throughout the length thereof for filing purposes, and which is equally well adapted for holdingfiband saws for the same purpose.

Another object is to provide a device of the character and for the purpose above set forth which is especially adapted for clamping hand saw blades uniformly and against slipping throughout the length thereof and preventing vibration of the saw blades during filing Other and subordinate objects, within the purview of my invention, together with the precise nature of my improvements will be readily understood when the succeeding description and claim are read with reference to the drawings accompanying and forming part of this specification.

In said drawings:

Figure 1 is a view in front elevation of my improved bench vise in a preferred embodiment thereof attached to a work bench and with a hand saw blade clamped therein;

Figure 2 is a fragmentary view in plan;

Figure 3 is a view in transverse section taken on the line 3-3 of Figure 1;

Figure 4 is a fragmentary view in perspective of one of the U-shaped frame members and the channel tie bar drawn to a larger scale;

Figure 5 is a detail view in transverse section taken on the line 55 of Figure 1 and drawn to a larger scale;

Figure 6 is a fragmentary View in perspective of the movable clamping bar.

Referring now to the drawings by numerals, according to my invention, as illustrated, a bench vise is provided comprising a plurality, preferably three, of U-shaped T iron frame members I having relatively short and long front and rear legs, 2, 3, the rear legs 3 having rearwardly extending, preferably flat, clamping bars 4 welded at one end thereof, as at 5, on the ends thereof at a right angle thereto, and similarly extending similar bars 6 welded at one end, as at 1, thereto at a suitable distance from said bars 4 so that said bars 4, 6 form pairs on said members adapted to straddle the front edge of a work bench 8. A channel tie bar 9 suitably fixed in said members I, adjacent the bight ends thereof, connects said members together in equidistantly spaced relation to form a frame slightly shorter than the usual hand saw blade. Hand screws 2 ll) threaded through the bars 6 with swivel clamping heads thereon form together with said clamping bars 4, clamps on the rear of said members for securing the said frame to the front edge of the work bench 8 with said members 9 depending vertically open ends uppermost.

A pair of opposed, relatively fixed and movable, front and rear, angle iron clamping bars |2, |3, with channel sides facing, are provided for clamping the blade M of a hand saw in the described frame, said clamping bars l2, l3 being at least as long as the usual hand saw blade and adapted to clampingly engage opposite sides of said blade along the same.

The fixed clamping bar I2 is welded at its rear convex side, adjacent its apex corner, to the front ends of the clamping bars 4, as at l5, said ends of the clamping bars 4 being beveled, as at it, so that said bar H is disposed with its edges arranged in a plane lying between the front and rear legs 2, 3 of said members parallel therewith.

The movable clamping bar I3 is fixed, in the same manner as said bar l2, to the upper ends of clamping levers pivoted adjacent said upper ends thereof, as at l8, to the upper ends of the front legs 2 for rocking in opposite directions to move the movable clamping bars it toward and away from the fixed clamping bar l2 into and from clamping relation thereto, respectively.

The pivots Id of the clamping levers 51 are arranged to provide on said levers short upper lever arms l9 above said pivots H3 and carrying said bar it, and long lever arms 2% below said pivots i8 curving downwardly and forwardly relative to said frame.

A bail-like yoke 2| is provided for rocking the clamping levers H in unison comprising bars 22 upstanding from the front legs 2 of said members with lower ends pivoted as at 23, to the front legs 2, and upper ends connected by a channel bar M, the arrangement being such that the yoke 2| is swingable rearwardly and forwardly toward and from the described frame. Pins 25 on said bars 22 riding in arcuate slots 26 in the long lever arms 20 of the clamping levers I? operatively connect the yoke 2| to said levers I? so that forward swinging of the yoke 2| rocks said levers H in a direction to move the movable clamping bar I3 into clamping relation to the fixed clamping bar I2, and swinging of said yoke 2| rearwardly rocks said levers H in the opposite direction to move the movable clamping bars l3 out of clamping relation to the fixed clamping bar I2. The curve of the slots 26, it will be noted, is such that, when the yoke 2| is swung forwardly,

for instance into substantially the dotted line position shown in Figure 3, the pins 25 will bind in said slots 26 and frictionally lock the movable clamping bar I3 in clamping relation to the fixed clamping bar 12.

A particular feature of my invention is that the fixed and movable clamping bars I2, l3 are provided with upstanding upper side edge flanges 27 for clamping stretches of a band saw, not shown, therebetween.

Another particular feature of my invention is a cushion strip of triangular cross section and resilient material, such as rubber, and which, as shown at 28, is fitted in the channel of the movable clamping bar l3 and projects slightly out of the same to engage one side of the saw blade I4 fiat and prevent the same from'vibrating'during filing when said blade is clamped between said bars l2, I3.

The use and operation of the described vise will be readily understood. To clamp the saw blade ifi-in the vise, the channel bar 2a of the yoke 2i is grasped and shoved rearwardly from the full line position shown in Figures 2'and 3, toward the described frame. This causes the clamping levers i? to be rocked clockwise as viewed in Figure 3 to move the movable clamping bar 13 away from the fixed clamping bar l2. The saw blade H5 is then positioned between said clamping bars i2, is, after which the channel bar 2 of the yoke 2! may be pulled rearwardly, away from said frame 1, yoke 2| into the dotted line position shown in Figure 3. This causes the movable clamping bar l3 to be moved so as to clamp the saw blade it between the same and the fixed clamping bar K2, in a manner which will be clear. When so clamped, the side edges of the clamping bars l2, l3 engage the sides of the saw blade I4 along two parallel longitudinal lines upon' each side of said blade, thereby securing the same in rigid position. The cushion strip 28 is compressed and prevents the saw blade from vibrating dur ing filing in a manner which will be clear.

The foregoing will, it is believed, sufiice to impart a clear understanding of my invention, without further explanation.

Manifestly, the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein reserved to such modifications as fall within the scope of the appended claim.

Having described the invention, what is claimed as new is:

A vise for attachment to a work bench to hold a saw blade for filing comprising an elongated frame, pairs of cooperating clamping devices spaced along said frame for securing the same to one edge of said bench to depend from said edge, a pair of angle iron clamping bars opposed with channel sides facing and adapted to extend along opposite sides of a saw blade interposed between the same to clamp said blade between the side edges of said bars, one of said bars being-fixed on top of said frame to extend along the same, the other clamping bar being movable, vertical levers pivoted on said frame in laterally spaced relation with ends fixed to the movable clamping bar at points spaced along the same and swingable to move said movable bar into clamping relation to said fixedbar, and means for swinging said levers in unison, comprising a yoke pivoted on said frame for vertical swinging downwardly and forwardly of said frame, said yoke having pins thereon and said levers having vertically curved slots therein in which'said'pins slide and bind'to frictionally lock said movable clamping bar in clamping relation,said'movable clamping bar having a resilient cushion strip therein for compression against one side of the blade to prevent the blade from vibrating during filing between-said clamping bars.

HENRY C. HANCOCK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 571,742 Binkerd Nov; 24, 1896 1,024,743 Padrick Apr. 30, 1912 1,196,772 Gaede' Sept. 5, 1916 1,324,594 Huggins Y Deco 9, 1919 1,507,501 Miller Sept. 2, 1924 

